In a special two-hour event, Ghost Adventures travel across Ireland's countryside, uncovering the origins of Halloween, abound with ancient Celtic legends and haunted locales infested by ghosts, banshees and satanic entities.

Zak, Nick & Aaron head to the Wyoming Frontier Prison, the resting place for over 200 inmates. While the guys investigate a 2nd haunted location in the neighborhood, an unseen entity violently throws their camera to the ground.

Zak, Nick & Aaron visit three New Orleans locations haunted by the lost souls of 2005's Hurricane Katrina. Zak records a spirit utter the words "Katrina," and Nick & Aaron witness books fly off the shelves during a voodoo ritual.

Zak, Nick & Aaron travel to a tiny Texas town to determine if the town's "crazy water" has led to the Baker Hotel becoming infested with ghosts. During the lockdown, Zak turns aggressive after a shadow figure disappears into him.

Zak, Nick and Aaron take their first trip to Mississippi to investigate the daunting King's Tavern, home to a legendary bloody dagger. During their lockdown, two members of the team appear to have lost control of themselves.

Zak, Nick and Aaron head to the Great Lakes to explore the demonic activity overrunning the Palmer House Hotel. The investigation gets personal when a dark spirit beckons Zak and Aaron, speaking their full names.

Zak, Nick and Aaron investigate the ghoulish Central Unit Prison of Sugar Land, Texas, where more than 100 inmates have met their end in the electric chair.

Zak, Nick and Aaron voyage to Greenfield, Indiana in search of the source of a dark power, which has overrun the Black Moon Manor. As the temperature suddenly drops to 66.6 degrees, the guys are startled to hear a demonic voice.

Zak, Nick & Aaron travel to the old mining town of Cripple Creek, CO to investigate two locations plagued with paranormal activity. The guys collect astounding visual evidence after implementing new 3D technology.

Zak Bagans, Nick Groff and Aaron Goodwin return to Goldfield, NV to reinvestigate the site of some of their most memorable haunts. The guys document extreme poltergeist activity, which they present to local experts for validation.

Zak, Nick & Aaron explore one of America's most haunted lighthouses in Point Sur, CA. The guys are amazed when they discover a mysterious figure along the coastline.

Zak, Nick & Aaron investigate the Sedamsville Rectory in Cincinnati, OH, plagued by a violent and demonic entity. The guys bring a priest in to perform an exorcism on the house, and they witness someone being possessed.

Zak, Nick and Aaron head to San Francisco to investigate a century-old strip club, home to a dark entity that stalks women and hurts men. An angry spirit blindsides Nick by yanking on his shirt collar.

Zak, Nick & Aaron are accompanied by ABC's Nightline crew to investigate a haunted harbor in Staten Island. The Ghost Adventures crew hears phantom noises and Zak and Nick discover a shadow lurking in the darkness.

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Zak, Nick & Aaron head to Zak's hometown of Chicago, IL, for a two-location lockdown of the Excalibur Nightclub and Bachelor's Grove Cemetery. The guys are taken aback when an unseen force pushes Zak down the stairs in the club.

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In this episode some of the nightclubs, bars and restautants the crew have investigated are highlighted, including Bobby Mackeys music world.

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Zak, Nick and Aaron invite celebrity investigators Brit Morgan from HBO's True Blood, and recording artist Mimi Page to Santa Paula to explore the haunted and mysterious Glen Tavern Inn.

This episode highlights some of the hospital's and asylums that the ghost adventures crew have explored including pennhurst and Yorktown memorial.

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